Circular Bar fixes

The circular bar has undergone some fixes and improvements thanks to a bug report by a user :) The following changes were made:

• Bars no longer report being activated/deactivated in TTS when grabbed outside of their usable area
• Bars with thumb_rotate True properly handle thumb grabbing events via checking for opaque pixels. Previously this caused an issue where a bar could jump to a maximum value when clicking near the beginning of a non-360 degree bar circumference
• Made a small tweak to the display check so bars without a 360 degree circumference won't show small pixel changes at max/min value due to being slightly outside the usual display area
• Fixed an oversight where hover_sound and activate_sound couldn't be added to bars

Q. Do I have to update?

I recommend you do, yes - while most of these changes only apply to certain kinds of bars with certain properties, in the long run it'll be better to have the fixes.

Thank you very much for your support! I hope you get good use out of this tool ✨